{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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    "size": 123725
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  "description": "A sealing device (300B) includes a first annular shield (307) in use rotating, a second annular shield (308), in use fixed and arranged in front of the first shield for delimiting therebetween a first annular chamber (309) and a sealing ring (314) provided with first and a second annular lips (115…",
  "path": "/patents/951344",
  "publishedAt": "2015-04-08T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60B27/0073",
    "SKF AB [SE]"
  ],
  "textContent": "A sealing device (300B) includes a first annular shield (307) in use rotating, a second annular shield (308), in use fixed and arranged in front of the first shield for delimiting therebetween a first annular chamber (309) and a sealing ring (314) provided with first and a second annular lips (115, 116) which extend axially and radially projecting from a flange portion (313) of the second shield and towards a flange portion (312) of the first shield, inside the annular chamber. At least one of the lips (315) cooperates with the flange portion (312) of the first shield without touching it for defining a first dynamic labyrinth seal (317) therewith. The first shield integrally supports a third annular lip (318) which extends projecting from the first shield (307) towards one of the first and second lips without touching it for defining a second dynamic labyrinth seal (319) between the first and second shield (307,308) and inside the annular chamber (109). The first annular lip (315) defines a large U-shaped annular cavity (325), the second annular lip (316) defines an asymmetric V-shaped annular cavity (327) and the third I-shaped annular lip (318) defines a small U-shaped annular cavity (326) radially between the other two cavities (325, 327). Radially outward of the cavities (325, 326, 327) there are provided respective drip guard elements (337, 338, 321) which convey impurities which may have entered into the annular chamber (309) directly into the cavitiies (325, 326, and 327) and towards the exterior from the annular chamber (309).",
  "title": "Cartridge seal with annular lips forming a labyrinth packing with annular cavities for collecting and expelling impurities, in particular for rolling bearings"
}